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Yamaha 30 outboard
I have a 94 C30MLHS outboard and I'm getting salt in the exhaust guide of the exhaust manifold. I did have a bad head and was getting water into the lower cylinder from that, but put a good head on it with a new head gasket and ran it a couple of days out on the sea. Took the power head back off today and the exhaust guide is again full of salt. Any suggestions as to what to look for now?